Precision tools for peptide reconstitution, dosing, and vial management. Designed for laboratory research use only.
Find out the resulting concentration when you add a known volume of sterile diluent to a lyophilised peptide vial.
| Vial Size | Diluent Added | Concentration | Per 10 unit mark (IU syringe) |
|---|---|---|---|
| 2 mg | 2 ml | 1 mg/ml (1000 mcg/ml) | 100 mcg |
| 5 mg | 2 ml | 2.5 mg/ml (2500 mcg/ml) | 250 mcg |
| 5 mg | 5 ml | 1 mg/ml (1000 mcg/ml) | 100 mcg |
| 10 mg | 2 ml | 5 mg/ml (5000 mcg/ml) | 500 mcg |
| 10 mg | 10 ml | 1 mg/ml (1000 mcg/ml) | 100 mcg |
Calculate the exact volume to draw into your syringe for a specific dose, based on your reconstituted concentration.
All standard insulin syringes are U-100: 1 unit = 0.01 ml on every syringe size. Syringe capacity only affects how large a dose will fit.
| Dose | Volume (ml) | Units (all U-100 syringes) | Minimum syringe size |
|---|---|---|---|
| 100 mcg | 0.10 ml | 10 units | 30 IU / 0.3ml |
| 200 mcg | 0.20 ml | 20 units | 30 IU / 0.3ml |
| 250 mcg | 0.25 ml | 25 units | 30 IU / 0.3ml |
| 500 mcg | 0.50 ml | 50 units | 50 IU / 0.5ml |
| 1 mg | 1.00 ml | 100 units | 100 IU / 1ml |
Calculate how many days a reconstituted vial will last based on your dosing protocol.
| Storage | Duration | Notes |
|---|---|---|
| Refrigerator (2–8°C) | 28–30 days | Recommended for reconstituted peptides |
| Freezer (−20°C) | Up to 6 months | Avoid repeated freeze-thaw cycles |
| Room temperature | 24–48 hours max | Not recommended for storage |
| Lyophilised (unopened) | As per label | Store cool, dry, away from light |
Our free peptide reconstitution calculator and peptide calculator provide instant, accurate calculations for three essential aspects of research peptide preparation: reconstitution volumes (how much diluent to add), dose volumes (how much to draw per injection), and vial duration (how many days a vial will last at a given protocol).
The peptide reconstitution calculator above covers every calculation a researcher needs — simply select the relevant tab and enter your values. No account required, no data stored. Use the diluent calculator tab to find the exact sterile diluent volume needed to achieve your target concentration.
The peptide dosing calculator has three tabs. The Reconstitution tab calculates how much diluent to add to achieve a specific concentration. The Dose Volume tab calculates the exact volume to draw for a given dose, with U-100 syringe unit conversion. The Vial Duration tab tells you how many days a vial will last at your protocol dose and frequency.
All calculations use standard U-100 insulin syringe calibration (1 unit = 0.01ml). For equipment, see our peptide pen injector and complete peptide pen kit UK. Sterile diluent is available separately (3ml / 10ml). For step-by-step reconstitution guidance, see our peptide reconstitution guide.
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